diff --git a/compiler/testData/codegen/boxWithJava/reflection/functionReferenceErasedToKFunction/K.kt b/compiler/testData/codegen/boxWithJava/reflection/functionReferenceErasedToKFunction/K.kt
index 4b7ada578e4..fdc08268557 100644
--- a/compiler/testData/codegen/boxWithJava/reflection/functionReferenceErasedToKFunction/K.kt
+++ b/compiler/testData/codegen/boxWithJava/reflection/functionReferenceErasedToKFunction/K.kt
@@ -1,6 +1,6 @@
 class K {
     fun reverse(s: String): String {
-        return s.reverse()
+        return s.reversed()
     }
 
     companion object {
diff --git a/compiler/testData/codegen/boxWithJava/reflection/javaClassGetFunctions/K.kt b/compiler/testData/codegen/boxWithJava/reflection/javaClassGetFunctions/K.kt
index 248f0229e0b..363950df596 100644
--- a/compiler/testData/codegen/boxWithJava/reflection/javaClassGetFunctions/K.kt
+++ b/compiler/testData/codegen/boxWithJava/reflection/javaClassGetFunctions/K.kt
@@ -2,9 +2,9 @@ import kotlin.reflect.*
 import kotlin.test.assertEquals
 
 fun box(): String {
-    assertEquals(listOf("equals", "hashCode", "member", "staticMethod", "toString"), J::class.members.map { it.name }.toSortedList())
-    assertEquals(listOf("equals", "hashCode", "member", "staticMethod", "toString"), J::class.functions.map { it.name }.toSortedList())
-    assertEquals(listOf("member", "staticMethod"), J::class.declaredFunctions.map { it.name }.toSortedList())
+    assertEquals(listOf("equals", "hashCode", "member", "staticMethod", "toString"), J::class.members.map { it.name }.sorted())
+    assertEquals(listOf("equals", "hashCode", "member", "staticMethod", "toString"), J::class.functions.map { it.name }.sorted())
+    assertEquals(listOf("member", "staticMethod"), J::class.declaredFunctions.map { it.name }.sorted())
 
     assertEquals(1, J::class.constructors.size())
 
diff --git a/compiler/testData/codegen/boxWithJava/reflection/nestedClasses/K.kt b/compiler/testData/codegen/boxWithJava/reflection/nestedClasses/K.kt
index d3672290a74..5dfe7b77ae5 100644
--- a/compiler/testData/codegen/boxWithJava/reflection/nestedClasses/K.kt
+++ b/compiler/testData/codegen/boxWithJava/reflection/nestedClasses/K.kt
@@ -1,7 +1,7 @@
 import kotlin.test.assertEquals
 
 fun box(): String {
-    assertEquals(listOf("Inner", "Nested", "PrivateNested"), J::class.nestedClasses.map { it.simpleName!! }.toSortedList())
+    assertEquals(listOf("Inner", "Nested", "PrivateNested"), J::class.nestedClasses.map { it.simpleName!! }.sorted())
 
     return "OK"
 }
diff --git a/compiler/testData/codegen/boxWithStdlib/reflection/annotations/simpleConstructorAnnotation.kt b/compiler/testData/codegen/boxWithStdlib/reflection/annotations/simpleConstructorAnnotation.kt
index c189d554f89..e2935a3d9dd 100644
--- a/compiler/testData/codegen/boxWithStdlib/reflection/annotations/simpleConstructorAnnotation.kt
+++ b/compiler/testData/codegen/boxWithStdlib/reflection/annotations/simpleConstructorAnnotation.kt
@@ -7,7 +7,7 @@ class C @Primary constructor() {
 }
 
 fun box(): String {
-    val ans = C::class.constructors.map { it.annotations.single().annotationType().simpleName }.toSortedList()
+    val ans = C::class.constructors.map { it.annotations.single().annotationType().simpleName }.sorted()
     if (ans != listOf("Primary", "Secondary")) return "Fail: $ans"
     return "OK"
 }
diff --git a/compiler/testData/codegen/boxWithStdlib/reflection/classes/nestedClasses.kt b/compiler/testData/codegen/boxWithStdlib/reflection/classes/nestedClasses.kt
index 0e70d36541e..1b4d048271c 100644
--- a/compiler/testData/codegen/boxWithStdlib/reflection/classes/nestedClasses.kt
+++ b/compiler/testData/codegen/boxWithStdlib/reflection/classes/nestedClasses.kt
@@ -11,7 +11,7 @@ class A {
     private class PrivateNested
 }
 
-fun nestedNames(c: KClass<*>) = c.nestedClasses.map { it.simpleName ?: throw AssertionError("Unnamed class: ${it.java}") }.toSortedList()
+fun nestedNames(c: KClass<*>) = c.nestedClasses.map { it.simpleName ?: throw AssertionError("Unnamed class: ${it.java}") }.sorted()
 
 fun box(): String {
     // Kotlin class without nested classes
diff --git a/compiler/testData/codegen/boxWithStdlib/reflection/functions/simpleGetFunctions.kt b/compiler/testData/codegen/boxWithStdlib/reflection/functions/simpleGetFunctions.kt
index 80658d4b2ab..f3a8415c73e 100644
--- a/compiler/testData/codegen/boxWithStdlib/reflection/functions/simpleGetFunctions.kt
+++ b/compiler/testData/codegen/boxWithStdlib/reflection/functions/simpleGetFunctions.kt
@@ -8,13 +8,13 @@ open class A {
 class B : A()
 
 fun box(): String {
-    val all = A::class.functions.map { it.name }.toSortedList()
+    val all = A::class.functions.map { it.name }.sorted()
     assert(all == listOf("equals", "hashCode", "mem", "memExt", "toString")) { "Fail A functions: ${A::class.functions}" }
 
-    val declared = A::class.declaredFunctions.map { it.name }.toSortedList()
+    val declared = A::class.declaredFunctions.map { it.name }.sorted()
     assert(declared == listOf("mem", "memExt")) { "Fail A declaredFunctions: ${A::class.declaredFunctions}" }
 
-    val declaredSubclass = B::class.declaredFunctions.map { it.name }.toSortedList()
+    val declaredSubclass = B::class.declaredFunctions.map { it.name }.sorted()
     assert(declaredSubclass.isEmpty()) { "Fail B declaredFunctions: ${B::class.declaredFunctions}" }
 
     return "OK"
diff --git a/compiler/testData/codegen/boxWithStdlib/reflection/properties/allVsDeclared.kt b/compiler/testData/codegen/boxWithStdlib/reflection/properties/allVsDeclared.kt
index ab2b6c06956..3f7a0bc2033 100644
--- a/compiler/testData/codegen/boxWithStdlib/reflection/properties/allVsDeclared.kt
+++ b/compiler/testData/codegen/boxWithStdlib/reflection/properties/allVsDeclared.kt
@@ -14,8 +14,8 @@ class Sub : Super() {
 fun box(): String {
     val sub = Sub::class
 
-    assertEquals(listOf("a", "c"), sub.memberProperties.map { it.name }.sort())
-    assertEquals(listOf("b", "d"), sub.memberExtensionProperties.map { it.name }.sort())
+    assertEquals(listOf("a", "c"), sub.memberProperties.map { it.name }.sorted())
+    assertEquals(listOf("b", "d"), sub.memberExtensionProperties.map { it.name }.sorted())
     assertEquals(listOf("c"), sub.declaredMemberProperties.map { it.name })
     assertEquals(listOf("d"), sub.declaredMemberExtensionProperties.map { it.name })
 
diff --git a/compiler/testData/codegen/boxWithStdlib/reflection/properties/simpleGetProperties.kt b/compiler/testData/codegen/boxWithStdlib/reflection/properties/simpleGetProperties.kt
index f4866eebc46..bfa6925bb3d 100644
--- a/compiler/testData/codegen/boxWithStdlib/reflection/properties/simpleGetProperties.kt
+++ b/compiler/testData/codegen/boxWithStdlib/reflection/properties/simpleGetProperties.kt
@@ -15,7 +15,7 @@ fun box(): String {
 
     val props = klass.memberProperties
 
-    val names = props.map { it.name }.toSortedList()
+    val names = props.map { it.name }.sorted()
     assert(names == listOf("anyVar", "int", "string")) { "Fail names: $props" }
 
     val stringProp = props.firstOrNull { it.name == "string" } ?: return "Fail, string not found: $props"
diff --git a/compiler/testData/codegen/boxWithStdlib/regressions/kt2017.kt b/compiler/testData/codegen/boxWithStdlib/regressions/kt2017.kt
index 86c3392ecbd..a48430c1bf6 100644
--- a/compiler/testData/codegen/boxWithStdlib/regressions/kt2017.kt
+++ b/compiler/testData/codegen/boxWithStdlib/regressions/kt2017.kt
@@ -1,4 +1,4 @@
 fun box(): String {
-    val sorted = arrayListOf("1", "3", "2").sort()
+    val sorted = arrayListOf("1", "3", "2").sorted()
     return if (sorted != arrayListOf("1", "2", "3")) "$sorted" else "OK"
 }
\ No newline at end of file
diff --git a/compiler/testData/codegen/boxWithStdlib/regressions/kt6434.kt b/compiler/testData/codegen/boxWithStdlib/regressions/kt6434.kt
index 85f9a4b9ab9..5ae625cacb7 100644
--- a/compiler/testData/codegen/boxWithStdlib/regressions/kt6434.kt
+++ b/compiler/testData/codegen/boxWithStdlib/regressions/kt6434.kt
@@ -23,6 +23,6 @@ class C(val nums: Map<E, Int>) {
 }
 
 fun box(): String {
-    val res = C(hashMapOf(E.VALUE to 11, E.VALUE2 to 12)).normalizedNums.values().sort().joinToString()
+    val res = C(hashMapOf(E.VALUE to 11, E.VALUE2 to 12)).normalizedNums.values().sorted().joinToString()
     return  if ("0.0, 1.0" == res) "OK" else "fail $res"
 }
\ No newline at end of file